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Commit cca87c18 authored by Benjamin Herrenschmidt's avatar Benjamin Herrenschmidt Committed by Jeff Garzik
Browse files

ibm_newemac: Increase MDIO timeouts 



This patch doubles the MDIO timeouts in EMAC as there are field
cases where they are two short to communicate with some PHYs.

Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: default avatarJeff Garzik <jgarzik@redhat.com>
parent 815b97c6

drivers/net/ibm_newemac/core.c

+4 −4
Original line number Diff line number Diff line
@@ -738,7 +738,7 @@ static int __emac_mdio_read(struct emac_instance *dev, u8 id, u8 reg) 
		rgmii_get_mdio(dev->rgmii_dev, dev->rgmii_port);



	/* Wait for management interface to become idle */

	n = 10;

	n = 20;

	while (!emac_phy_done(dev, in_be32(&p->stacr))) {

		udelay(1);

		if (!--n) {
@@ -763,7 +763,7 @@ static int __emac_mdio_read(struct emac_instance *dev, u8 id, u8 reg) 
	out_be32(&p->stacr, r);



	/* Wait for read to complete */

	n = 100;

	n = 200;

	while (!emac_phy_done(dev, (r = in_be32(&p->stacr)))) {

		udelay(1);

		if (!--n) {
@@ -810,7 +810,7 @@ static void __emac_mdio_write(struct emac_instance *dev, u8 id, u8 reg, 
		rgmii_get_mdio(dev->rgmii_dev, dev->rgmii_port);



	/* Wait for management interface to be idle */

	n = 10;

	n = 20;

	while (!emac_phy_done(dev, in_be32(&p->stacr))) {

		udelay(1);

		if (!--n) {
@@ -836,7 +836,7 @@ static void __emac_mdio_write(struct emac_instance *dev, u8 id, u8 reg, 
	out_be32(&p->stacr, r);



	/* Wait for write to complete */

	n = 100;

	n = 200;

	while (!emac_phy_done(dev, in_be32(&p->stacr))) {

		udelay(1);

		if (!--n) {